Lincoln photo uncovered in Grant album

A collector believes a photograph from a private album of Civil War Gen. Ulysses S. Grant shows President Abraham Lincoln in front of the White House and could be the last image taken of him before he was assassinated in 1865.

If it is indeed Lincoln, it would be the only known photo of the 16th president in front of the executive mansion and a rare find, as only about 130 photos of him are known to exist.

Grant's 38-year-old great-great-grandson, Ulysses S. Grant VI, had seen the picture before, but didn't examine it closely until late January. A tall figure in the distance caught his eye, although the man's facial features are obscured.

He called Keya Morgan, a New York-based photography collector and Lincoln aficionado, who helped identify it as Lincoln.

"I was like, 'I don't know who this is, Keya,'" said Grant, a Springfield, Mo., construction business owner.

Although authenticating the 2 1/2-by-3 1/2-inch photo beyond a shadow of a doubt could be difficult, several historians who looked at it said the evidence supporting Morgan's claim is compelling and believable.

Read more and see the photo here.